CN111452902B - Same-cavity liquid-cooled centrally-mounted motor - Google Patents
Same-cavity liquid-cooled centrally-mounted motor Download PDFInfo
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- CN111452902B CN111452902B CN202010365719.0A CN202010365719A CN111452902B CN 111452902 B CN111452902 B CN 111452902B CN 202010365719 A CN202010365719 A CN 202010365719A CN 111452902 B CN111452902 B CN 111452902B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
- B62M6/40—Rider propelled cycles with auxiliary electric motor
- B62M6/55—Rider propelled cycles with auxiliary electric motor power-driven at crank shafts parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
- B62M11/04—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
- H02K11/215—Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/30—Structural association with control circuits or drive circuits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses a same-cavity liquid-cooled centrally-mounted motor which comprises a casing, a central shaft, a stator assembly and the like, wherein the central shaft penetrates through the casing and extends out of the casing, the stator assembly is sleeved inside a rotor assembly and connected to the casing, a clutch is respectively connected with the central shaft and a gear speed change mechanism, a control system is connected with the stator assembly, the motor also comprises insulating cooling liquid, gears and the like, the central shaft penetrates through the central shaft, the gear speed change mechanism penetrates through the central shaft and is connected with the rotor assembly, the stator assembly, the control system and the like are arranged in the first cavity, and the gear speed change mechanism and the like are arranged in the second cavity. According to the invention, the control system is arranged in the first cavity, and is spatially closer to the core component of the motor, so that more accurate control and monitoring can be realized. After the control system and the stator assembly are arranged together, the insulating cooling liquid is utilized to intensively dissipate heat, and the heat dissipation efficiency is also improved.
Description
Technical Field
The invention relates to a centrally-mounted motor, in particular to a same-cavity liquid-cooled centrally-mounted motor.
Background
In electric bicycle field, put the motor and be referred to electric bicycle's driving motor and install the motor in the intermediate position of automobile body, pedal position, this motor is connected with the automobile body to be connected and transmit power through chain and rear wheel, pedal is installed to the both sides of motor simultaneously, and the person of riding can realize the manpower of bicycle through pedal, also can select the mode of motor cooperation manpower to ride. Under the condition of the same power consumption, the middle motor can obtain larger torque than the rear hub motor, and the service efficiency of the battery is improved. In the existing market, the motor assembly is separated from the control system and the central control module, so that the operation is unstable, and the control system is difficult to control the motor in real time and accurately. In addition, most of cooling methods adopt air cooling, so that the cooling efficiency is low, the motor performance is poor, and the service life is influenced, so that improvement is needed.
Disclosure of Invention
Aiming at the defects that a motor assembly is separated from a control system and a central control module in the prior art, the operation is unstable, the control system is difficult to control the motor in real time and accurately, the heat dissipation efficiency is low and the like, the invention provides a novel same-cavity liquid-cooled central motor.
In order to solve the technical problems, the invention is realized by the following technical scheme:
The utility model provides a put motor in same chamber liquid-cooled, includes casing, axis, stator module, rotor subassembly, gear change mechanism, clutch, control system, the axis passes the casing and stretch out outside the casing, stator module cover is established rotor subassembly is inside and be connected to on the casing, the clutch respectively with the axis gear change mechanism is connected, control system with stator module is connected, still includes insulating coolant liquid, gear lubricating oil, median septum, the median septum sets up in the casing, the median septum will the casing inside is cut apart into first cavity, second cavity, the axis passes the median septum, gear change mechanism passes the median septum with rotor subassembly is connected, stator module rotor subassembly insulating coolant liquid, control system sets up in the first cavity, gear change mechanism the clutch gear lubricating oil sets up in the second cavity.
The shell provides support positioning and protection for the stator component, the rotor component and other components, so that the installation positioning is reliable and the stator component and the rotor component are prevented from being damaged by external force. When the stator assembly is energized, a driving torque can be generated through the law of electromagnetic induction, thereby rotating the rotor assembly relative to the stator assembly. The gear speed change mechanism is connected with the rotor assembly, and the rotor assembly drives the gear speed change mechanism and outputs the power of the rotor assembly in a decelerating way. The clutch is respectively connected with the middle shaft and the gear speed change mechanism, and can be driven by the middle shaft and the gear speed change mechanism to rotate and finally output the power.
The invention is provided with the first cavity and the second cavity, and the stator assembly, the rotor assembly, the insulating cooling liquid and the control system are arranged in the first cavity, and the gear speed change mechanism, the clutch and the gear lubricating oil are arranged in the second cavity, so that the gear speed change mechanism, the clutch and the gear lubricating oil are not easy to influence each other, and the stability and the reliability of the invention are further improved. The insulating cooling liquid in the first cavity is in a flowing state, flows in the casing along with the rotation of the rotor assembly, and is fully contacted with each heating component to generate heat exchange, so that the heat dissipation efficiency is greatly improved. The gear lubricating oil in the second cavity is used for lubricating the gear speed change mechanism and simultaneously cooling the gear speed change mechanism, so that mechanical friction generated by gear engagement is effectively controlled to generate heat, abrasion on the surfaces of gear teeth is reduced, and the service life of the gear is prolonged. The control system is arranged in the first cavity, the control system is spatially closer to the core component of the motor, more accurate control and monitoring can be realized, the control system can be located in the motor through the structure, and the circuit arrangement of the whole automobile is simpler and the structure is more compact. The control system and the stator assembly are arranged together, and then heat is intensively dissipated by using the insulating cooling liquid, so that the heat dissipation efficiency is improved.
Preferably, the same-cavity liquid-cooled central motor further comprises a central control module, wherein the central control module is arranged in the second cavity and is connected with the control system.
The central control module is arranged in the second cavity, so that the integral structure of the invention is more compact, and the functions are more diversified. After the central control module and the gear speed change mechanism are arranged together, the gear lubricating oil is utilized for concentrated heat dissipation, and the heat dissipation efficiency is also improved.
Preferably, the same-cavity liquid-cooled central motor further comprises a wiring plug-in unit, wherein the wiring plug-in unit is arranged on the middle partition plate and penetrates through the middle partition plate, and the central control module and the control system are connected through the wiring plug-in unit.
The wiring plug-in components that set up on the middle baffle are used for connecting the well accuse module, the control system that are located different cavitys, and the installation of being convenient for.
Preferably, in the same-cavity liquid-cooled central motor, the middle partition plate is provided with a through plug-in hole, and the wiring plug-in penetrates through the middle partition plate through the plug-in hole.
The plug-in holes are arranged on the middle partition board in a penetrating way and are used for installing the wiring plug-in, so that the installation steps can be simplified.
Preferably, the above-mentioned same-cavity liquid-cooled centrally-mounted motor, the rotor assembly includes a rotor support and a magnetic steel sheet, which are connected to each other, the rotor support is connected to the gear speed change mechanism and sleeved outside the stator assembly, the rotor support rotates around the stator assembly with the central shaft as an axis, and the magnetic steel sheet is located between the rotor support and the stator assembly.
After the stator assembly is electrified, the magnetic steel sheet can be driven to drive the rotor bracket to rotate around the rotor bracket under the action of magnetic force.
Preferably, the same-cavity liquid-cooled central motor further comprises a magnetic signal sensor, wherein the magnetic signal sensor is arranged on the shell and corresponds to the magnetic steel sheet, and the magnetic signal sensor is connected with the control system.
Preferably, the Hall element is used as a magnetic signal sensor, and the magnetic signal sensor accurately transmits the position information of the rotor assembly to the control system by sensing the magnetic field of the end part of the magnetic steel sheet. Meanwhile, mechanical damage to the Hall element caused by the fact that the Hall element is mounted on the stator assembly by a traditional motor is avoided.
Preferably, in the same-cavity liquid-cooled central motor, an inductor support is disposed at a position of the casing corresponding to the magnetic signal inductor, and the inductor support is adapted to the magnetic signal inductor and fixes the magnetic signal inductor.
The inductor support is used for fixing the magnetic signal inductor and improving the installation speed of the magnetic signal inductor in the installation process.
Preferably, in the same-cavity liquid-cooled central motor, the middle partition plate is provided with a concave diversion trench at a position corresponding to the rotor assembly, and the section of the diversion trench is in a U shape.
The concave U-shaped structure of the diversion trench can accommodate part of insulating cooling liquid, and in the rotating process of the rotor assembly, the insulating cooling liquid in the concave U-shaped structure can flow to one side of the control system along the diversion trench. After the insulating cooling liquid contacts with the control system, the insulating cooling liquid flows back to one side of the diversion trench again under the stirring of the rotor assembly, so that the circulating flow of the insulating cooling liquid is realized.
Preferably, in the same-cavity liquid-cooled central motor, the rotor bracket is provided with a through notch.
Insulating coolant on one side of the diversion trench can flow into the stator assembly through the notch on the rotor bracket, so that the heat dissipation efficiency is improved, and the rapid cooling is performed.
Preferably, in the same-cavity liquid-cooled central motor, the slots are arranged at edges of the side wall of the rotor bracket, and the number of the slots is more than 2.
The heat dissipation efficiency can be improved by setting more than 2 notches, and the contact area between the stator assembly and the insulating cooling liquid is increased.
Preferably, in the same-cavity liquid-cooled central motor, the rotor support is provided with oil stirring blades at positions corresponding to the notches, and the oil stirring blades are sheet-shaped protrusions.
The stirring effect of the rotor bracket on the insulating cooling liquid can be enhanced by the oil stirring fan blades, the circulating flow speed of the insulating cooling liquid is improved, and the heat dissipation efficiency is improved.
Preferably, in the above-mentioned same-cavity liquid-cooled central motor, the control system and the rotor assembly are transversely disposed inside the first cavity, and the height of the control system is lower than that of the rotor assembly.
The control system is arranged at a position below the side surface of the rotor assembly, and the insulation cooling liquid flowing out of the diversion trench can flow into the control system from the upper part of the control system to cool the insulation cooling liquid in cooperation with the rotation direction of the rotor assembly.
Preferably, the above-mentioned same-cavity liquid-cooled central motor, the casing includes a side cover and a casing body, the side cover is detachably connected with the casing body, and the middle partition is disposed on the casing body.
The side cover and the shell body adopt a detachable connection mode, so that the whole installation process is more convenient and more beneficial to later maintenance and replacement.
Preferably, the same-cavity liquid-cooled central motor further comprises a sealing gasket, wherein the sealing gasket is located between the side cover and the shell body, and the sealing gasket is matched with the side cover and the shell body.
And a sealing gasket is arranged between the side cover and the shell body, so that the sealing performance of the motor is ensured.
Preferably, in the same-cavity liquid-cooled central motor, a sealing gasket groove is formed in a position, corresponding to the sealing gasket, of the side cover, and the sealing gasket groove is matched with the sealing gasket.
The sealing gasket can be embedded in the sealing gasket groove, so that the sealing gasket can not fall off, and the sealing gasket can be accurately positioned in the installation process.
Preferably, in the same-cavity liquid-cooled central motor, the casing is provided with a wire clamping groove, and the wire clamping groove is located at the outer side of the side cover corresponding to the second cavity.
The wire clamping groove can restrict and position the wire harness led out by the central control module in the second cavity, so that the whole appearance of the motor is tidy.
Preferably, the same-cavity liquid-cooled central motor further comprises a first oil-proof ventilation valve, wherein the oil-proof ventilation film is arranged in the first oil-proof ventilation valve, a first through ventilation hole is formed in the first cavity, and the first oil-proof ventilation valve is matched with the first ventilation hole and seals the first ventilation hole.
The design of the first oil-proof ventilation valve can ensure the balance of the internal and external air pressure of the first cavity when the motor works, reduce the internal and external pressure difference of the motor caused by the rising or the falling of the internal temperature of the motor, protect the motor and prolong the service life of the motor.
Preferably, the same-cavity liquid-cooled central motor further comprises a second oil-proof ventilation valve, wherein the oil-proof ventilation film is arranged in the second oil-proof ventilation valve, a second through ventilation hole is formed in the second cavity, and the second oil-proof ventilation valve is matched with the second ventilation hole and seals the second ventilation hole.
The design of the second oil-proof ventilation valve can ensure the balance of the internal and external air pressure of the second cavity when the motor works, reduce the internal and external pressure difference of the motor caused by the rising or the falling of the internal temperature of the motor, protect the motor and prolong the service life of the motor.
Preferably, in the same-cavity liquid-cooled central motor, the central shaft passes through the stator assembly, the rotor assembly, the gear shifting mechanism and the clutch.
The axial centers of the stator component, the rotor component, the gear speed change mechanism, the middle shaft and the clutch are overlapped, the whole transmission process is simple, the mechanical loss in the power output transmission process is small, and the abrasion is not easy to cause. The noise is little when the motor is operated, is favorable to prolonging the life of motor.
Preferably, the same-cavity liquid-cooled central motor further comprises a pedal crank, wherein the pedal crank is connected with a part of the middle shaft extending out of the casing.
The pedal crank connected with the middle shaft can drive the middle shaft to rotate under the action of human force, and then the middle shaft drives the clutch module to realize the power output of human force.
Preferably, the same-cavity liquid-cooled central motor further comprises a sprocket support, and the sprocket support is connected with the clutch.
When the motor is used, the chain wheel support can be externally connected with a chain wheel, and the chain wheel support drives the externally connected chain wheel to rotate together under the drive of the clutch module, so that the power output of the motor is realized.
Drawings
FIG. 1 is a schematic view of the components of the present invention located within a first chamber;
FIG. 2 is a schematic view of the structure of the wire clamping groove and the components in the second cavity in the invention;
FIG. 3 is a cross-sectional view of the present invention;
FIG. 4 is an exploded view of the present invention;
FIG. 5 is a schematic view of the interior of the first chamber of the present invention;
FIG. 6 is a schematic view of the interior of a second chamber according to the present invention;
FIG. 7 is a schematic view of the rotor assembly and bottom bracket and stator assembly of the present invention assembled together;
FIG. 8 is a schematic view of the present invention after being mounted to a vehicle frame;
Fig. 9 is a schematic structural view of the present invention.
Detailed Description
The invention is described in further detail below in connection with figures 1-9 and the detailed description, which are not intended to limit the invention:
Example 1
The utility model provides a put motor in same chamber liquid cooling, includes casing 1, axis 4, stator module 3, rotor subassembly 2, gear change mechanism 6, clutch 7, control system 5, axis 4 pass casing 1 and stretch out the casing 1 is outside, stator module 3 cover is established rotor subassembly 2 is inside and be connected to on the casing 1, clutch 7 respectively with axis 4 gear change mechanism 6 is connected, control system 5 with stator module 3 is connected, still includes insulating coolant 111, gear lubricating 121, intermediate diaphragm 13 sets up in casing 1, intermediate diaphragm 13 will casing 1 inside is split into first cavity 11, second cavity 12, axis 4 passes intermediate diaphragm 13, gear change mechanism 6 pass intermediate diaphragm 13 with rotor subassembly 2 is connected, stator module 3, rotor subassembly 2, insulating coolant 111 control system 5 sets up in first cavity 11 gear change mechanism 6, second intermediate diaphragm 12 sets up in the clutch 12.
When the motor needs to be started, a starting signal is sent out through the control system 5, the stator assembly 3 is electrified, lorentz force is generated between the rotor assembly 2 and the stator assembly 3, and the rotor assembly 2 rotates around the stator assembly 3. The gear speed change mechanism 6 rotates under the drive of the rotor assembly 2, the rotating gear speed change mechanism 6 drives the clutch 7 to rotate, and finally the clutch 7 outputs the power of the motor through an external power output part.
In this process, the insulating coolant 111 in the first chamber 11 flows under agitation of the rotor assembly 2, is sufficiently contacted with the heat generating components of the control system 5, the stator assembly 3, etc., and undergoes heat exchange, and then transfers heat to the casing 1, and then is emitted to the outside air.
When an over-temperature or over-speed condition occurs, the control system 5 issues a command to decrease the rotational speed, thereby decreasing the rotational speed of the rotor assembly 2. When the motor needs to be stopped, the control system 5 sends a stop signal, and the motor gradually stops working.
When the manual driving is adopted, the external power component of the center shaft 4 drives the center shaft 4 to rotate, the center shaft 4 drives the clutch 7 to work, and finally the clutch 7 outputs the manual power through the external power output component.
Preferably, the device further comprises a central control module 8, wherein the central control module 8 is arranged in the second cavity 12, and the central control module 8 is connected with the control system 5.
Preferably, the central control module 8 and the control system 5 are connected through the wiring plug-in 133, wherein the wiring plug-in 133 is arranged on the middle partition 13 and penetrates through the middle partition 13.
Preferably, the middle partition 13 is provided with a through insertion hole 131, and the wiring insertion 133 penetrates the middle partition 13 through the insertion hole 131.
Preferably, the rotor assembly 2 includes a rotor support 21 and a magnetic steel sheet 22 that are connected to each other, the rotor support 21 is connected to the gear shifting mechanism 6 and sleeved outside the stator assembly 3, the rotor support 21 rotates around the stator assembly 3 with the central shaft 4 as an axis, and the magnetic steel sheet 22 is located between the rotor support 21 and the stator assembly 3.
Preferably, the magnetic signal sensor 9 is further included, the magnetic signal sensor 9 is disposed on the casing 1 and corresponds to the magnetic steel sheet 22, and the magnetic signal sensor 9 is connected with the control system 5.
Preferably, the casing 1 is provided with an inductor support 14 at a position corresponding to the magnetic signal inductor 9, and the inductor support 14 is adapted to the magnetic signal inductor 9 and fixes the magnetic signal inductor 9.
Preferably, the middle partition 13 is provided with a concave diversion trench 132 at a position corresponding to the rotor assembly 2, and the diversion trench 132 has a U-shaped cross section.
Preferably, the rotor holder 21 is provided with a through slot 211.
Preferably, the notches 211 are provided at the edges of the side wall of the rotor bracket 21, and the number of the notches 211 is 2 or more.
Preferably, the rotor support 21 is provided with an oil stirring blade 212 at a position corresponding to the notch 211, and the oil stirring blade 212 is a sheet-shaped protrusion.
Preferably, the control system 5 and the rotor assembly 2 are arranged transversely inside the first cavity 11, and the arrangement height of the control system 5 is lower than the arrangement height of the rotor assembly 2.
Preferably, the casing 1 includes a side cover 15 and a casing body 16, the side cover 15 is detachably connected with the casing body 16, and the middle partition 13 is disposed on the casing body 16.
Preferably, the sealing gasket 17 is located between the side cover 15 and the shell body 16, and the sealing gasket 17 is matched with the side cover 15 and the shell body 16.
Preferably, the side cover 15 is provided with a gasket groove 18 at a position corresponding to the gasket 17, and the gasket groove 18 is adapted to the gasket 17.
Preferably, the casing 1 is provided with a wire clamping groove 19, and the wire clamping groove 19 is located outside the side cover 15 corresponding to the second cavity 12.
Preferably, the air conditioner further comprises a first oil-proof air-permeable valve 112, wherein an oil-proof air-permeable film is arranged in the first oil-proof air-permeable valve 112, a first through air hole 113 is formed in the first cavity 11, and the first oil-proof air-permeable valve 112 is matched with the first air hole 113 and seals the first air hole 113.
Preferably, the air conditioner further comprises a second oil-proof air-permeable valve 122, an oil-proof air-permeable film is arranged in the second oil-proof air-permeable valve 122, a through second air hole 123 is formed in the second cavity 12, and the second oil-proof air-permeable valve 122 is matched with the second air hole 123 and seals the second air hole 123.
Preferably, the middle shaft 4 passes through the stator assembly 3, the rotor assembly 2, the gear change mechanism 6 and the clutch 7.
Preferably, the bicycle further comprises a pedal crank 41, and the pedal crank 41 is connected with a part of the middle shaft 4 extending out of the casing 1.
Preferably, the clutch device further comprises a sprocket support 71, and the sprocket support 71 is connected with the clutch 7.
When the motor needs to be started, a starting signal is sent out through the control system 5, the stator assembly 3 is electrified, and at the moment, the magnetic steel sheet 22 rotates around the stator assembly 3 by taking the central shaft 4 as the axis under the action of magnetic force, and meanwhile, the rotor support 21 is driven to rotate together. The gear speed change mechanism 6 rotates under the drive of the rotor bracket 21, the rotating gear speed change mechanism 6 drives the clutch 7 to rotate, and finally the clutch 7 outputs the power of the motor through the sprocket bracket 71.
In this process, the insulating coolant 111 in the first cavity 11 flows under the agitation of the rotor support 21, the insulating coolant 111 in the diversion trench 132 flows onto the stator assembly 3 through the notch 211, and meanwhile, under the pushing of the stirring fan blade 212, the insulating coolant 111 on one side of the diversion trench 132 is conveyed to the upper side of the control system 5, flows into the control system 5 from the upper side of the control system 5 and contacts with the control system 5, and then flows back to one side of the diversion trench 132 again, so as to realize the circulation flow of the insulating coolant. The insulating coolant 111 is in sufficient contact with the heat generating components of the control system 5, the stator assembly 3, etc., and undergoes heat exchange, and then transfers the heat to the casing 1, and then is emitted to the outside air.
The magnetic signal sensor 9 accurately transmits the position information of the rotor assembly 2 to the control system 5 by sensing the magnetic field at the end of the magnetic steel sheet 22, and when the temperature is too high or the speed is too high, the control system 5 sends out a command for reducing the rotating speed, so that the rotating speed of the rotor assembly 2 is reduced. When the motor needs to be stopped, the control system 5 sends a stop signal, and the motor gradually stops working.
As the operating time of the motor increases, the temperature in the casing 1 increases gradually, and the air pressure also increases gradually, and the air in the first chamber 11 flows to the outside of the casing 1 through the first oil-proof air-permeable valve 112. The gas in the second chamber 12 flows to the outside of the casing 1 through the second oil-proof gas-permeable valve 122. When the motor stops working, the temperature in the shell 1 is gradually reduced, the air pressure is also gradually reduced, and the air outside the shell 1 flows into the shell 1 through the first oil-proof air-permeable valve 112 and the second oil-proof air-permeable valve 122.
When the manual driving is adopted, the pedal crank 41 drives the middle shaft 4 to rotate, the middle shaft 4 drives the clutch 7 to work, and finally the clutch 7 outputs the manual power through the sprocket support 71.
In summary, the foregoing description is only of the preferred embodiments of the present invention, and all equivalent changes and modifications that come within the scope of the present invention are desired to be covered thereby.
Claims (17)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010365719.0A CN111452902B (en) | 2020-04-30 | 2020-04-30 | Same-cavity liquid-cooled centrally-mounted motor |
| PCT/CN2020/091257 WO2021217756A1 (en) | 2020-04-30 | 2020-05-20 | Same-cavity liquid-cooled center-mounted electric motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010365719.0A CN111452902B (en) | 2020-04-30 | 2020-04-30 | Same-cavity liquid-cooled centrally-mounted motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111452902A CN111452902A (en) | 2020-07-28 |
| CN111452902B true CN111452902B (en) | 2024-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010365719.0A Active CN111452902B (en) | 2020-04-30 | 2020-04-30 | Same-cavity liquid-cooled centrally-mounted motor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111452902B (en) |
| WO (1) | WO2021217756A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102023106365A1 (en) * | 2023-03-14 | 2024-09-19 | Brose Antriebstechnik GmbH & Co. Kommanditgesellschaft, Berlin | Drive housing for an electric bicycle with ventilation assembly and/or rib structure forming cooling air ducts |
| CN116995860B (en) * | 2023-08-16 | 2024-03-12 | 江苏恒康机电有限公司 | Middle motor for exhaust guide fan of production workshop |
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| CN103718435A (en) * | 2011-08-08 | 2014-04-09 | 丰田自动车株式会社 | Rotary electric machine |
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| CN212373595U (en) * | 2020-04-30 | 2021-01-19 | 浙江绿源电动车有限公司 | A liquid-cooled mid-mounted motor with the same cavity |
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| CN108768067A (en) * | 2018-07-20 | 2018-11-06 | 浙江绿源电动车有限公司 | decelerating motor |
| CN111082602A (en) * | 2020-01-21 | 2020-04-28 | 浙江绿源电动车有限公司 | A hub motor with built-in control system |
| CN212373595U (en) * | 2020-04-30 | 2021-01-19 | 浙江绿源电动车有限公司 | A liquid-cooled mid-mounted motor with the same cavity |
Also Published As
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| WO2021217756A1 (en) | 2021-11-04 |
| CN111452902A (en) | 2020-07-28 |
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